Selective re-extraction of lube extracts to reduce mutagenicity index
    1.
    发明授权
    Selective re-extraction of lube extracts to reduce mutagenicity index 失效
    选择性再提取润滑油提取物以降低致突变性指标

    公开(公告)号:US6146520A

    公开(公告)日:2000-11-14

    申请号:US829882

    申请日:1997-04-02

    CPC分类号: C10G21/02 C10G21/28

    摘要: A process for reducing the Mutagenicity Index and/or the PCA content of a lubricating oil extract by re-extracting a lubricating oil extract with a second extraction solvent, different from the first extraction solvent, to form a secondary raffinate and a secondary extract mix; separating the secondary raffinate from the secondary extract mix; and separating the secondary raffinate and the secondary extract from said second extraction solvent.

    摘要翻译: 一种通过用不同于第一提取溶剂的第二提取溶剂重新萃取润滑油提取物来降低润滑油提取物的致突变性指数和/或PCA含量的方法,以形成二级提余液和二级提取物混合物; 从第二提取物混合物中分离第二提余液; 以及从所述第二提取溶剂中分离所述第二萃余液和所述第二提取物。